Photos on the site promoting the sex video show the couple going at it in several positions, with Simmons keeping his shirt on (and his pants around his ankles) and the woman wearing lingerie.
Simmons and longtime love, former Playboy model Shannon Tweed, have been a couple for over 20 years and have two children, 19-year-old Nicholas and 15-year-old Sophie.
In a message posted on his web site, Simmons writes, "Hi everyone. You may have heard or seen garbage that has sprung up from my past. Rest assured the proper legal team is looking at all ramifications and options.
"And us? Shannon, Nick and Soph are happy and healthy. All is well.
"And thank you all for the kind words of support."